Went out last week, it was about 74 (air)/65 (water) here in Iowa. I have 3/4 wetsuit that made it very comfortable to be in the water. I would go out again, but I can't get anyone to go when they have to wear a sweatshirt in the boat. I am hoping for one my fluke 70 or 80 degree day to go out. I need to get some die hard skier friends.